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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/12927

Title: Study of the pyrolysis of municipal solid waste for the production of valuable products
Authors: VELGHE, Inge
CARLEER, Robert
YPERMAN, Jan
SCHREURS, Sonja
Issue Date: 2011
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 92 (2), p. 366-375
Abstract: To obtain information on the potential of thermal conversion (pyrolysis) of municipal solid waste (MSW), a thermogravimetric study (TGA) is performed in a stream of nitrogen. Based on TGA results, pyrolysis experiments are carried out in a semi-batch reactor under inert nitrogen atmosphere. Slow pyrolysis is performed up to 550 degrees C (heating rate of 4 degrees C/min). Fast pyrolysis is performed at 450, 480, 510 and 550 degrees C and different input transfer rates (12 or 24 g material/min). The pyrolysis products are studied on composition and yield/distribution and investigated for their use as valuable product. The liquid obtained by slow pyrolysis separates spontaneously in a water rich product and an oily product. For all fast pyrolysis conditions, a viscous, brown oil which contains a poly(ethylene-co-propylene) wax is obtained. Composition analyses by GC/MS of the oil products (slow/fast pyrolysis) show that aliphatic hydrocarbons are the major compounds. The pyrolysis oils have high calorific value (between 35 and 44 MJ/kg), low wt% of water (around 6 wt%) and a low O/C value (between 0.2 and 0.3). The presence of waxy material is probably clue to incomplete breakdown of poly(ethylene-co-propylene) present in MSW under study. The optimal pyrolysis conditions, regarding to oil yield, fuel properties, and wax yield is fast pyrolysis at 510 degrees C with 24g material/min input transfer rate. The fast pyrolysis gases contain mainly hydrocarbons and have an averaged LHV around 20 MJ/Nm(3). ICP-AES analyses of pyrolysis products reveal that almost none of the metals present in MSW are distributed within the liquid fractions. (C) 2011 Elsevier B.V. All rights reserved.
Notes: [Yperman, J.] Hasselt Univ, CMK, Lab Appl & Analyt Chem, Res Grp Appl & Analyt Chem, B-3590 Diepenbeek, Belgium. [Velghe, I.; Schreurs, S.] XIOS, Dept TIW, NuTeC, B-3590 Diepenbeek, Belgium. inge.velghe@xios.be; robert.carleer@uhasselt.be; jan.yperman@uhasselt.be; sonja.schreurs@xios.be
URI: http://hdl.handle.net/1942/12927
DOI: 10.1016/j.jaap.2011.07.011
ISI #: 000297386200013
ISSN: 0165-2370
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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